The number of people per household in Tokyo at the beginning of 2012 was 1.99.

That is the first time it has fallen below 2.

In 2005, the city's 23 central wards were below 2 people per household; since then the trend has spread to the entire metropolitan area.

Source: Kyodo News

The number of people who have overstayed their visa fell 14.6% from the previous year to 67,065. That is the lowest figure since records first were recorded in 1990.

Source: Kyodo News

QS World University Rankings, 2011/12

1. University of Cambridge
2. Harvard University
3. MIT
4. Yale University
5. Oxford
6. Imperial College London
7. University College London
8. University of Chicago
9. University of Pennsylvania
10. Columbia University